141=7x+2(7x-3)

Solution for 141=7x+2(7x-3) equation:

Simplifying
141 = 7x + 2(7x + -3)

Reorder the terms:
141 = 7x + 2(-3 + 7x)
141 = 7x + (-3 * 2 + 7x * 2)
141 = 7x + (-6 + 14x)

Reorder the terms:
141 = -6 + 7x + 14x

Combine like terms: 7x + 14x = 21x
141 = -6 + 21x

Solving
141 = -6 + 21x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-21x' to each side of the equation.
141 + -21x = -6 + 21x + -21x

Combine like terms: 21x + -21x = 0
141 + -21x = -6 + 0
141 + -21x = -6

Add '-141' to each side of the equation.
141 + -141 + -21x = -6 + -141

Combine like terms: 141 + -141 = 0
0 + -21x = -6 + -141
-21x = -6 + -141

Combine like terms: -6 + -141 = -147
-21x = -147

Divide each side by '-21'.
x = 7

Simplifying
x = 7